var createError = require('http-errors');
var express = require('express');
var path = require('path');
var cookieParser = require('cookie-parser');
var logger = require('morgan');
const bodyParser = require("body-parser");

const session = require("express-session");

var indexRouter = require('./routes/index');
var proRouter = require('./routes/pro');
var bannerRouter = require('./routes/banner');
var userRouter = require('./routes/user');
var orderRouter = require('./routes/order');
var cartRouter = require('./routes/cart');
var loginRouter = require('./routes/login');

var proApiRouter = require('./api/pro');
var bannerApiRouter = require('./api/banner');
var userApiRouter = require('./api/user');
var cartApiRouter = require('./api/cart');
var orderApiRouter = require('./api/order');
var searchApiRouter = require('./api/search');


var app = express();
app.all("*",(req,res,next)=>{
	// 允许所有来源
	res.header("Access-Control-Allow-Origin","*");
	// 允许的请求方式
	res.header("Access-Control-Allow-Methods","get,post");
	res.header("Access-Control-Allow-Headers",'Content-Type, Content-Length, Authorization, Accept, X-Requested-With , token');
	
	next();
})
// view engine setup
app.set('views', path.join(__dirname, 'views'));
app.set('view engine', 'ejs');

app.use(logger('dev'));
app.use(express.json());
app.use(bodyParser.urlencoded({ extended: false, limit:"10MB" }));
app.use(cookieParser());
app.use(express.static(path.join(__dirname, 'public')));


app.use(session({
  secret: "千锋H5，前端界的扛把子",   // 加密信息，可以随便写
  resave: false,  // 强制保存session，默认为true，建议设置为false
  saveUninitialized: true, // 强制将未初始化的session存储，默认为true，建议为true
  cookie: { maxAge: 1000 * 60 * 30 }    // 过期时间，毫秒数
}));

app.use('/api/pro', proApiRouter);
app.use('/api/banner', bannerApiRouter);
app.use('/api/user',userApiRouter)
app.use('/api/cart',cartApiRouter)
app.use('/api/order', orderApiRouter);
app.use('/api/search', searchApiRouter);


app.all("*",(req, res, next)=>{
  // 通过cookie验证登录状态
  // if(req.cookies.isLogin === "ok" || req.url === "/login" || req.url === "/login/in"){
  //   next();
  // }else{
  //   res.redirect("/login");
  // }
  // 通过session验证登录状态
  if(req.session.isLogin === "ok" || req.url === "/login" || req.url === "/login/in"){
    next();
  }else{
    res.redirect("/login");
  }
})

app.use('/', indexRouter);
app.use('/pro', proRouter);
app.use('/banner', bannerRouter);
app.use('/order', orderRouter);
app.use('/user', userRouter);
app.use('/cart', cartRouter);
app.use('/login', loginRouter);

// catch 404 and forward to error handler
app.use(function(req, res, next) {
  next(createError(404));
});

// error handler
app.use(function(err, req, res, next) {
  // set locals, only providing error in development
  res.locals.message = err.message;
  res.locals.error = req.app.get('env') === 'development' ? err : {};

  // render the error page
  res.status(err.status || 500);
  res.render('error');
});

module.exports = app;
